Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment consist of the following:

In thousands	September 30, 2018			December 31, 2017
Land	$	9,082		$	9,408
Facilities and equipment	583,459			554,160
Assets under capital leases	109,042			82,753
	701,583			646,321
Accumulated amortization (1)	(474,431		)	(448,001		)
	227,152			198,320
Construction in progress	58,719			56,417
Property, plant and equipment, net	$	285,871		$	254,737

(1) Includes $44.9 million and $28.2 million of accumulated amortization related to assets under capital leases at September 30, 2018 and December 31, 2017, respectively.